Margot Robbie has "never met anyone" like Cara Delevingne and she has likened her to a "rare gem in this world".

The 'Suicide Squad' star has gushed about her co-star, who she has dubbed a "rare gem in this world".

She said: "She is a rare gem in this world and I've just never met anyone like her.

"She is the most genuine person you can ever meet and there's nothing calculated about that girl. She's like a little comet just blasting her way through this world."

The 26-year-old actress - who hails from Australia - has spent a lot of time in the UK and is more than happy to try some of the country's delicacies including black pudding.

She told Glamour magazine: "At my first bite of black pudding, I was like 'yum' and then someone said it's dried blood and I was like 'I can't'. Once I knew, I couldn't get past it. I tried but I can't."

Meanwhile, Margot previously described Cara as her "new drinking buddy".

She shared: "What made working on the film even more amazing was that I found my new drinking buddy in Cara. It's no myth about the British being able to drink, Cara is hardcore. I struggle to keep up. But we have the most fun ever. She is definitely now one of my drinking buddies for life."

Margot is also good friends with another famous Brit - Prince Harry.

She revealed: "He [Prince Harry] is pretty quick on text, actually. Unlike me. I write back four days later, weeks later sometimes."